/* ── Variables ── */
:root {
  --navy:    #1a2744;
  --navy-light: #243359;
  --bg:      #f8f7f4;
  --white:   #ffffff;
  --teal:    #2a8a7e;
  --teal-dark: #1f6b61;
  --amber:   #c4882a;
  --muted:   #6b7280;
  --text:    #111827;
  --border:  #e5e7eb;
  --shadow:  0 2px 8px rgba(0,0,0,0.07);
  --radius:  6px;
  --max-w:   1100px;
  --narrow:  680px;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 17px; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
a { color: var(--teal); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; }

/* ── Navigation ── */
.nav {
  background: var(--navy);
  padding: 0 20px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 4px rgba(0,0,0,0.2);
}
.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-brand {
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 1.4rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.04em;
  text-decoration: none;
}
.nav-brand:hover { text-decoration: none; color: #d0dff0; }
.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-link {
  color: #b8c8e0;
  font-size: 0.9rem;
  padding: 8px 12px;
  border-radius: 4px;
  text-decoration: none;
  min-height: 44px;
  display: flex;
  align-items: center;
  transition: background 0.15s, color 0.15s;
}
.nav-link:hover { background: var(--navy-light); color: #fff; text-decoration: none; }
.nav-link-logout { color: #94a3b8; }
.nav-cta {
  background: var(--teal);
  color: #fff !important;
  border-radius: var(--radius);
}
.nav-cta:hover { background: var(--teal-dark); }

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  min-height: 44px;
  min-width: 44px;
  justify-content: center;
  align-items: center;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: #b8c8e0;
  border-radius: 2px;
  transition: transform 0.2s, opacity 0.2s;
}

@media (max-width: 640px) {
  .nav-toggle { display: flex; }
  .nav-menu {
    display: none;
    position: absolute;
    top: 56px;
    left: 0;
    right: 0;
    background: var(--navy);
    flex-direction: column;
    padding: 12px 16px 20px;
    gap: 2px;
    border-top: 1px solid var(--navy-light);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
  }
  .nav-menu.open { display: flex; }
  .nav-link { width: 100%; font-size: 1rem; padding: 12px 16px; }
}

/* ── Flash Messages ── */
.flash-container {
  max-width: var(--max-w);
  margin: 16px auto 0;
  padding: 0 20px;
}
.flash {
  padding: 12px 16px;
  border-radius: var(--radius);
  margin-bottom: 8px;
  font-size: 0.9rem;
  font-weight: 500;
}
.flash-success { background: #d1fae5; color: #065f46; border: 1px solid #6ee7b7; }
.flash-error   { background: #fee2e2; color: #991b1b; border: 1px solid #fca5a5; }
.flash-warning { background: #fef3c7; color: #92400e; border: 1px solid #fcd34d; }
.flash-info    { background: #dbeafe; color: #1e40af; border: 1px solid #93c5fd; }

/* ── Main & Footer ── */
.main-content { flex: 1; }
.footer {
  background: var(--navy);
  padding: 20px;
  margin-top: auto;
}
.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  gap: 12px;
  align-items: center;
}
.footer-brand {
  font-family: Georgia, serif;
  font-weight: 700;
  color: #fff;
  font-size: 0.95rem;
}
.footer-tagline {
  color: #6b8099;
  font-size: 0.85rem;
}

/* ── Layout Helpers ── */
.page-container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 32px 20px 60px;
}
.page-container-narrow { max-width: var(--narrow); }
.page-title {
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 8px;
}
.page-subtitle {
  color: var(--muted);
  margin-bottom: 28px;
  font-size: 0.95rem;
}
.back-link {
  display: inline-block;
  color: var(--muted);
  font-size: 0.88rem;
  margin-bottom: 24px;
}
.back-link:hover { color: var(--teal); text-decoration: none; }
.section-title {
  font-family: Georgia, serif;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 11px 24px;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  border: 2px solid transparent;
  min-height: 44px;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.btn-primary { background: var(--navy); color: #fff; }
.btn-primary:hover { background: var(--navy-light); text-decoration: none; color: #fff; }
.btn-secondary { background: var(--white); color: var(--navy); border-color: var(--border); }
.btn-secondary:hover { border-color: var(--navy); text-decoration: none; }
.btn-ghost { background: transparent; color: var(--muted); border-color: transparent; }
.btn-ghost:hover { color: var(--text); text-decoration: none; }
.btn-full { width: 100%; }
.btn-sm { padding: 7px 16px; font-size: 0.85rem; min-height: 36px; }

/* ── Landing ── */
.hero {
  background: var(--navy);
  color: #fff;
  padding: 72px 20px 80px;
  text-align: center;
}
.hero-inner { max-width: 600px; margin: 0 auto; }
.hero-title {
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 3.6rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  margin-bottom: 18px;
}
.hero-tagline {
  font-size: 1.2rem;
  color: #93c5d8;
  margin-bottom: 20px;
  line-height: 1.5;
}
.hero-desc {
  color: #94a3b8;
  font-size: 0.97rem;
  line-height: 1.7;
  margin-bottom: 36px;
}
.hero-ctas { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.hero-ctas .btn-primary { background: var(--teal); border-color: var(--teal); }
.hero-ctas .btn-primary:hover { background: var(--teal-dark); }
.hero-ctas .btn-secondary { color: #fff; border-color: rgba(255,255,255,0.4); background: transparent; }
.hero-ctas .btn-secondary:hover { border-color: #fff; }

.features { padding: 56px 20px; background: var(--white); }
.features-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.feature-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
}
.feature-icon { font-size: 2rem; margin-bottom: 12px; }
.feature-card h3 {
  font-family: Georgia, serif;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 8px;
}
.feature-card p { color: var(--muted); font-size: 0.92rem; line-height: 1.6; }

@media (max-width: 640px) {
  .hero-title { font-size: 2.6rem; }
  .features-inner { grid-template-columns: 1fr; gap: 16px; }
}

/* ── Feed ── */
.feed-header { margin-bottom: 24px; }
.category-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}
.filter-btn {
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.82rem;
  font-weight: 600;
  background: var(--white);
  border: 1px solid var(--border);
  color: var(--muted);
  text-decoration: none;
  transition: background 0.15s, color 0.15s;
  min-height: 36px;
  display: inline-flex;
  align-items: center;
}
.filter-btn:hover { background: var(--navy); color: #fff; text-decoration: none; border-color: var(--navy); }
.filter-btn-active { background: var(--navy); color: #fff; border-color: var(--navy); }

.topic-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
@media (max-width: 640px) {
  .topic-grid { grid-template-columns: 1fr; }
}

.topic-card {
  display: flex;
  flex-direction: column;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
  text-decoration: none;
  color: var(--text);
  transition: box-shadow 0.15s, transform 0.15s;
}
.topic-card:hover {
  box-shadow: 0 4px 16px rgba(0,0,0,0.1);
  transform: translateY(-2px);
  text-decoration: none;
}
.topic-card-title {
  font-family: Georgia, serif;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--navy);
  margin: 10px 0 8px;
  line-height: 1.4;
}
.topic-card-summary {
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.6;
  flex: 1;
}
.topic-card-meta {
  display: flex;
  justify-content: space-between;
  margin-top: 14px;
  font-size: 0.78rem;
  color: #9ca3af;
}

/* ── Category Badges ── */
.category-badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 12px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.cat-ai               { background: #ede9fe; color: #5b21b6; }
.cat-economy          { background: #d1fae5; color: #065f46; }
.cat-immigration      { background: #fef3c7; color: #92400e; }
.cat-climate          { background: #dcfce7; color: #166534; }
.cat-healthcare       { background: #fee2e2; color: #991b1b; }
.cat-housing          { background: #ede9fe; color: #6d28d9; }
.cat-foreign-policy   { background: #dbeafe; color: #1e40af; }
.cat-education        { background: #ffedd5; color: #9a3412; }
.cat-technology       { background: #cffafe; color: #155e75; }
.cat-local-government  { background: #f0fdf4; color: #14532d; }
.cat-national-politics { background: #fef2f2; color: #7f1d1d; }

/* ── Topic Detail ── */
.topic-article { margin-bottom: 36px; }
.topic-title {
  font-family: Georgia, serif;
  font-size: 1.7rem;
  font-weight: 700;
  color: var(--navy);
  line-height: 1.3;
  margin: 14px 0 8px;
}
.topic-meta { color: var(--muted); font-size: 0.85rem; margin-bottom: 20px; }
.topic-summary {
  font-size: 1rem;
  line-height: 1.75;
  color: #374151;
}
.topic-sources { margin-bottom: 36px; }
.source-list { list-style: none; }
.source-list li { padding: 8px 0; border-bottom: 1px solid var(--border); font-size: 0.92rem; }
.source-list li:last-child { border-bottom: none; }
.source-list a { color: var(--teal); }

.topic-reactions { margin-bottom: 40px; }
.reaction-buttons {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
@media (max-width: 480px) {
  .reaction-buttons { grid-template-columns: 1fr; }
  .topic-title { font-size: 1.35rem; }
}
.reaction-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  background: var(--white);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text);
  min-height: 52px;
  transition: border-color 0.15s, background 0.15s;
}
.reaction-btn:hover { border-color: var(--teal); background: #f0faf9; }
.reaction-btn-active { border-color: var(--teal); background: #e6f7f5; color: var(--teal-dark); }
.reaction-count-badge {
  background: var(--border);
  border-radius: 12px;
  padding: 2px 9px;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--muted);
  min-width: 28px;
  text-align: center;
}
.reaction-btn-active .reaction-count-badge { background: var(--teal); color: #fff; }
.reaction-note { margin-top: 12px; font-size: 0.85rem; color: var(--muted); }

/* ── Empty State ── */
.empty-state {
  text-align: center;
  padding: 64px 20px;
}
.empty-state-text { color: var(--muted); margin-bottom: 20px; font-size: 1rem; }

/* ── Forms ── */
.form-page {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 48px 20px 80px;
}
.form-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 32px;
  width: 100%;
  max-width: 440px;
  box-shadow: var(--shadow);
}
.form-title {
  font-family: Georgia, serif;
  font-size: 1.55rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 28px;
}
.form-group { margin-bottom: 20px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  color: #374151;
  margin-bottom: 6px;
}
.form-hint { font-weight: 400; color: var(--muted); }
.form-input {
  display: block;
  width: 100%;
  padding: 11px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.97rem;
  color: var(--text);
  background: var(--white);
  min-height: 46px;
  transition: border-color 0.15s, box-shadow 0.15s;
  font-family: inherit;
}
.form-input:focus {
  outline: none;
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(42,138,126,0.15);
}
.form-select { cursor: pointer; }
.form-textarea { min-height: 100px; resize: vertical; }
.form-footer-link {
  text-align: center;
  margin-top: 20px;
  font-size: 0.88rem;
  color: var(--muted);
}
.form-actions { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }

@media (max-width: 480px) {
  .form-card { padding: 28px 20px; }
  .form-row { grid-template-columns: 1fr; }
}

/* ── Profile ── */
.profile-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 12px;
}
.profile-username {
  font-family: Georgia, serif;
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--navy);
}
.profile-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
}
.profile-bio {
  color: var(--text);
  line-height: 1.7;
  margin-bottom: 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}
.profile-fields { margin-bottom: 20px; }
.profile-field {
  display: flex;
  gap: 12px;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.92rem;
}
.profile-field:last-child { border-bottom: none; }
.profile-field-label { font-weight: 600; color: var(--muted); min-width: 110px; }
.profile-field-value { color: var(--text); }
.profile-interests { margin-top: 20px; padding-top: 20px; border-top: 1px solid var(--border); }
.interest-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.interest-tag {
  background: #e0f0f8;
  color: var(--navy);
  border-radius: 14px;
  padding: 4px 12px;
  font-size: 0.82rem;
  font-weight: 600;
}
.profile-no-interests { color: var(--muted); font-size: 0.92rem; margin-top: 12px; }

/* ── Interests Checkboxes ── */
.interests-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
@media (max-width: 600px) {
  .interests-grid { grid-template-columns: repeat(2, 1fr); }
}
.interest-checkbox {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--white);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  cursor: pointer;
  min-height: 52px;
  transition: border-color 0.15s, background 0.15s;
}
.interest-checkbox:hover { border-color: var(--teal); }
.interest-checkbox-checked { border-color: var(--teal); background: #e6f7f5; }
.interest-checkbox input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--teal);
  cursor: pointer;
  flex-shrink: 0;
}
.interest-checkbox-label { font-size: 0.92rem; font-weight: 600; color: var(--text); }

/* ── Civic Units Coming Soon ── */
.coming-soon-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 56px 40px;
  text-align: center;
  box-shadow: var(--shadow);
  margin-top: 16px;
}
.coming-soon-icon { font-size: 3rem; margin-bottom: 16px; }
.coming-soon-title {
  font-family: Georgia, serif;
  font-size: 2rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 6px;
}
.coming-soon-tagline {
  color: var(--teal);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 24px;
}
.coming-soon-desc {
  color: var(--muted);
  max-width: 480px;
  margin: 0 auto 14px;
  line-height: 1.7;
  font-size: 0.97rem;
}